The Turk's cap lily (Lilium martagon) has leaf formation similar to the drawing on fol 5r of the Voynich Manuscript (Beinecke 408). The roots of the plant are used to relive heart diseases.
The best proposal for this page so far comes from Theodore Petersen, Ethel Voynich's friend who came up with the Indian cucumber in 1930s. The flower, the berry and the leaves match perfectly... Medeola Virginiana, however, is a North American plant, which would mean the VMs was written at least decades after its parchment production. Unless experts can suggest similar plant from Europe.